Brian Durant writes:
Here is an interesting posting that I just received. I don't know if this can be applied to vanilla Fedora Core PPC, as it looks like it is a YDL specific kernel upgrade, but I still thought it might have some relevance:
This is web page was about the support for the very first of the new PowerMac G5 machines. With this fix I got fan support for our 2.0GHz G5, back when we ran YDL because I thought their Mac focus would mean better support for such things. note these were kernels from around 2.6.8 and 2.6.9.
However, this was specifically PowerMac7,2 and for PowerMac7,3 I had to move to FC4 unless I wanted to pay for YDL 4.0.91 beta. For a while I built my own kernel but I didn't want to keep doing that, applying a simple patch to add 7,3 support that I got from a benh post somewhere.
As far as your 9,1 system, 2.6.15 was the first place the support was officially integrated. It is likely that YDL 4.1 might have it when it comes out, even if its a backport to an older kernel. I'm going to grab the 4.1 YDL kernels when they are available and try them out. I'm also going to try and rebuild the FC4 test 2.6.15 kernels to see if I can get them working properly.
YDL's business was originally focused on Macintosh but with the move to Apple to Intel, they have moved to PowerPC boxes from other vendors such IBM and others, as well as moving to a focus on scientific cluster computing, including layering on top of other peoples x86 linux solations. So I'm not counting on them for a lot of future support for the final generation Apple hardware. YDL 4.x was Fedora Core based, so its not that different that YDL. FC even uses the "yum" package updater originally from YDL.
The good news is that Linus Torvalds uses one of the dual proc G5's so you can count on powerpc working well for the near future :)
-bri